问题
选择题
to the conference, we have already discussed this problem among ourselves.
A．Similar
B．Previous
C．Cautious
D．Senior
答案
答案：B
B 考查词义辨析。“早在回忆之前，我们已经相互讨论了这个问题。”similar相似的；previous在以前；cautious谨慎的；senior高级的，年长的。故选B。